Improvement in methods of casting



- L. MORGAN.

Method of Casting.

Patented Juhe 8,1875.

IN VENToR.

Win/nabs 5. dim'zf, 7

THE GRAPH") C0.PHOTD-LITH.39&41 PARK PLACEJLY.

UNITED STATES PATE T OFFICE.

LYMAN MORGAN, OF PORT WASHINGTON, WISOON SIN.

IMPROVEMENT IN METHODS OF CASTING.

Specification forming part of Letters Patent No. 164,198, dated June 8,1875'; application filed March 13, 1873. I

i the following is a specification:

My invention relates to the mode of molding and casting a smutter-casein staves by embedding the pattern in the sand and sticking the chillsthrough the pattern into the sand, and when the pattern is taken off thechills are left standing.

Figure 1 is a view of the pattern used in the operation. Fig. 2 is across-sectional view of the lower part of a flask, and the pattern andchills in place in the sand.

A is the flask; B, the pattern with indentations D in it. C representsthe molding-sand; E, the oblong holes running crosswise of thesmutter-ease; F, the chills, running down into the sand, their upperedges coming up through the pattern. The outside of the smutter-case issmooth, the oblong holes coming up flush with theoutside case, sothatit' the grain Wears the inside of the case the holes for the escapeof dust will maintain their size, and will be no larger than when thecase is new or unworn.

I mold the case as follows: Take the pattern and put it into the flaskwith sand in its bed, the pattern down into the sand, the rounding oroutside down; then tamp the molding-sand around it even with the top;then take the chills or cores and stick them through the holes in thepattern down into the sand so that their tops shall just come up withthe bottom of the indentations; then packsand on top of the .pattern,tamping it in the usual manner, making the necessary provisions forpouring the metal in the mold; then remove the top of the flask with thesand from the top of the pattern; then draw the pattern from the sand,leaving the cores sticking up in the mold; and when the top of the flaskis put on again, or the two halves of the flask put together again, itwill make a mold with the chills or cores in place, so that, as themetal is poured in, the cores will make the oblong openings in thesmutter-case, the cores being pulled out of the stave-s after itis'cast.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

The method of molding for casting staves for smut-machine cases bysticking the cores through the pattern, and then lifting the pattern offof the cores, leaving them sticking in the sand, substantially asdescribed.

LYMAN MORGAN. Witnesses:

J. B. SMITH, E. J. SMITH.

